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Added reference to algorithm description for ruggedness index

git-svn-id: http://svn.osgeo.org/qgis/trunk@14464 c8812cc2-4d05-0410-92ff-de0c093fc19c
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mhugent
mhugent committed Oct 31, 2010
1 parent 2ba6227 commit 40b7172cbfb2142a5b2c040f7ca98645820c05df
Showing with 2 additions and 1 deletion.
  1. +2 −1 src/analysis/raster/qgsruggednessfilter.h
@@ -20,7 +20,8 @@

#include "qgsninecellfilter.h"

/**Calculates the ruggedness index based on a 3x3 moving window*/
/**Calculates the ruggedness index based on a 3x3 moving window.
Algorithm from Riley et al. 1999: A terrain ruggedness index that quantifies topographic heterogeneity*/
class ANALYSIS_EXPORT QgsRuggednessFilter: public QgsNineCellFilter
{
public:

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